It depends, there are so many holsters out there and many are really good.
Let's narrow it down Plastic or leather or a Hybrid? In the Waistband or On The belt? Strongside, cross draw or Appendix?
The last deciding factor will be your body size and build. Wide shoulders, narrow hips you can just about carry with any kind of holster. Built like a beach ball? Choices get narrowed down some.
The last deciding factor is your wallet. How much do you want to spend. You can actually get a workable holster for less than $30, a decent semi custom made one fpr around $60 or a full custom anywhere from pretty inexpensive to hundreds of dollars.
Everyone has holster likes and dislikes. I am a big fan of Lobo Gun leather, makes a nice holster for a fair price, with your options and pretty quick delivery.
Good Luck with your decision.